Patents by Inventor John A. Hunt

John A. Hunt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Materials and methods for cell growth
    Publication number: 20100040661
    Abstract: Nanopatterned surfaces which provide for improved cell growth including improved stem cell differentiation. The patterned surfaces can comprise an array of fields of biologically active moieties and can be controlled by parameters which include the pitch between the fields and the size of the fields. Nanopatterning can be carried out with use of dip pen nanolithographic printing, microcontact printing, and nanoimprint lithography.
    Type: Application
    Filed: July 10, 2009
    Publication date: February 18, 2010
    Inventors: John A. Hunt, Judith M. Curran, Duncan Graham, Robert Stokes
  • Methods and apparatus for improving resolution and reducing noise in an image detector for an electron microscope
    Patent number: 6414309
    Abstract: Methods and apparatus are provided which improve the performance of electron imaging detectors by reducing the total interaction volume of the detector and/or reducing the energy converting volume of the detector. In one embodiment, a method for improving resolution and reducing noise in an imaging electron detector for an electron microscope is provided and includes the step of decelerating the energetic electrons either before the electrons interact with, or as the electrons interact with, the energy converting volume of an imaging electron detector. In other embodiments, the lateral spatial travel of energetic electrons is limited as they traverse the imaging electron detector, or, the extent of electron back scatter from the energetic electrons is limited.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: July 2, 2002
    Assignee: Gatan, Inc.
    Inventors: Paul E. Mooney, John A. Hunt
  • Methods and apparatus for improving resolution and reducing noise in an image detector for an electron microscope
    Publication number: 20010010359
    Abstract: Methods and apparatus are provided which improve the performance of electron imaging detectors by reducing the total interaction volume of the detector and/or reducing the energy converting volume of the detector. In one embodiment, a method for improving resolution and reducing noise in an imaging electron detector for an electron microscope is provided and includes the step of decelerating the energetic electrons either before the electrons interact with, or as the electrons interact with, the energy converting volume of an imaging electron detector. In other embodiments, the lateral spatial travel of energetic electrons is limited as they traverse the imaging electron detector, or, the extent of electron back scatter from the energetic electrons is limited.
    Type: Application
    Filed: February 26, 2001
    Publication date: August 2, 2001
    Inventors: Paul E. Mooney, John A. Hunt
  • Methods and apparatus for improving resolution and reducing noise in an image detector for an electron microscope
    Patent number: 6194719
    Abstract: Methods and apparatus are provided which improve the performance of electron imaging detectors by reducing the total interaction volume of the detector and/or reducing the energy converting volume of the detector. In one embodiment, a method for improving resolution and reducing noise in an imaging electron detector for an electron microscope is provided and includes the step of decelerating the energetic electrons either before the electrons interact with, or as the electrons interact with, the energy converting volume of an imaging electron detector. In other embodiments, the lateral spatial travel of energetic electrons is limited as they traverse the imaging electron detector, or, the extent of electron back scatter from the energetic electrons is limited.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: February 27, 2001
    Assignee: Gatan, Inc.
    Inventors: Paul E. Mooney, John A. Hunt